Table 2.
Mean left and right contact angle (CA) values and the respective surface energies (SE), with statistical standard deviations in the values, of all the four magnesium-based alloys
| Alloy | Liquid | Left | Right |
|---|---|---|---|
| Mg-5Zr | Water CA | 25.25° ± 0.92° | 27.25° ± 0.49° |
| Glycerol CA | 43.9° ± 1.27° | 46.65° ± 0.07° | |
| Surface energy | 66.76 μJ/mm2 | 66.53 μJ/mm2 | |
| Average SE | 66.64 ± 0.162 μJ/mm2 | ||
| Mg-5Zr-Ca | Water CA | 23.3° ± 0.71° | 24.3° ± 0.99° |
| Glycerol CA | 45.7° ± 0.57° | 48.1° ± 1.98° | |
| Surface energy | 68.27 μJ/mm2 | 69.40 μJ/mm2 | |
| Average SE | 68.83 ± 0.79 μJ/mm2 | ||
| Mg-2Zr-5Sr | Water CA | 43.45° ± 0.64° | 41.65° ± 2.33° |
| Glycerol CA | 53.65° ± 6.15° | 54.35° ± 3.04° | |
| Surface energy | 55.60 μJ/mm2 | 57.17 μJ/mm2 | |
| Average SE | 56.38 ± 1.11 μJ/mm2 | ||
| Mg-Zr-2Sr | Water CA | 63.85° ± 1.76° | 64.15° ± 1.91° |
| Glycerol CA | 74.4° ± 2.68° | 73.55° ± 0.64° | |
| Surface energy | 42.42 μJ/mm2 | 41.85 μJ/mm2 | |
| Average SE | 42.13 ± 0.40 μJ/mm2 | ||
Abbreviations: Zr, zirconium; Sr, strontium; Ca, calcium; Mg, magnesium.